Question

Q.1 Fill in the blanks with the appropriate words for each of the statements given below: [5]
1. Germination of seeds is considered a
[physical/chemical] change.
2. If a change is permanent & irreversible it is considered a (chemical/physical]
change.
3. Heating a piece of iron, is considered a
[physical/ chemical] change, while
heating a piece of coal (carbon) is considered a [physical/chemical] change.
4. Chemical changes may involve exchange of energy in the form of
&
[light/sound/magnetic/heat].
5. Change of milk to curd is a [desirable/undesirable] change.​

Answer 1

Answer:

chemical

chemical

physical

chemical

undesirable

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Answer 2

Answer:

1. chemical

2.chemical

3.chemical.

4.magentic

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